"Joseph Oberlander" wrote in message
link.net
Arny Krueger wrote:

Letsee 40 watts is 16 dBw. Your typical home audio speaker runs 90
dB/w. That means that this 40 watt peanut whistle can't muster 118
dB a meter from the speaker, let alone create any kind of serious
sound field in a typical listening room. If you consider typical low
efficency speakers with 83 dBw sensitivity, now 1 meter SPL is down
to 109 dB. It's really hopeless trying to do a quality stereo with
average or low efficiency speakers and a peanut whistle for an
amplifier.

Arny, you should know better.

I do.

109 db is LOUD.

Not 109 dB peaks on music with natural dynamics.

For a quiet house that is plenty.

So is a 100 milliwatt transistor radio. But, who are you to say what is
plenty?

Also, if the speakers are inefficient but have a high
pressure level, it will easily fill the entire house with sound - or
at least create the illusion of a decent amount of energy.

Please explain.